Find the area of triangle whose 1 side is 20 cm perimeter is 110 and the other 2 sides are equal
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Answer:
50√77 sq cm
Step-by-step explanation:
1 side of the trangle= 20 cm
perimeter = 110 cm. S= perimeter /2
= 110/2
Other two side each= ( 110-20)/2 cm
= 45 cm
Area of the triangle= √ s(s-a)(s-b)(s-c)
= √ 55(55-20)(55-45)(55-45)
=√55x35x10x10
=5x10√7x11
=50√77 sqare cm
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